Cannot enable multi-factor on user's account

Question

Hi Team,

I need your help with enabling/enforcing multi-factor authentication on a user's account. I have tried to use the 'manage users' settings' prompt, but I keep getting error messages. I have attached a photo of the error for reference. I would appreciate your assistance with this issue.

Regards

Sys_Ops

Answer 1

Dear Sys_Ops,

Good day! Thank you for posting to Microsoft Community.

I'm sorry to hear that you're having trouble enabling multi-factor authentication on a user's account. In order to understand your query and provide possible solution, May I please double confirm if you want to enable and enforce MFA for all users or individual users in your organization?

• May I please know if the users account in question has an active Microsoft 365 or Office subscription? if yes, could you please provide us the subscription type?
• May I please know if the issue is one specific account or all account in your organizations?
• May I please double confirm if you tried to enable and enforce MFA through Microsoft Entra ID admin center? if not, kindly Sign in to the Microsoft Entra admin center -->Browse to Identity > Overview > Properties -->Select Manage security defaults > Set Security defaults to Enabled > Select Save. You can refer to Set up multifactor authentication for users - Microsoft 365 admin | Microsoft Learn After Enabling security default, Go to Users -->All users -->Select the user account you want to enable and enforce MFA -->Authentication Methods -->Add Authentication method -->Choose Authentication Methods. You can refer to Manage authentication methods for Microsoft Entra multifactor authentication - Microsoft Entra ID | Microsoft Learn

I look forward to your response. Kindly note that the above requested information is required for further analysis and troubleshooting of your situation. Your patience and cooperation are much appreciated.

Thank you for your precious time. Have a nice day.

Sincerely,

Libeamlak | Microsoft Community Moderator